Root
 Reboot to bootloader
 Rename TWRP as recovery and copy it to folder. Right click and select command
 Type in “fastboot flash recovery recovery.img”. Wait for it to finish and type in “fastboot reboot” and wait for phone to reboost.
 Move SuperSU to the internal memory of your cellphone. Find the best-suited SuperSU (namely v2.79 and v2.64)
 Boost into recovery, install SuperSU by sliding it right in
 And… that should get you all set XD

Root
 Reboot to bootloader
 Rename TWRP as recovery and copy it to folder. Right click and select command
 Type in “fastboot flash recovery recovery.img”. Wait for it to finish and type in “fastboot reboot” and wait for phone to reboost.
 Move SuperSU to the internail memory of your cellphone. Find the best-suited SuperSU (namely v2.79 and v2.64)
 Boost into recovery, install SuperSU by sliding it right in
 And… that should get you all set XD